Psych is rounding out its Season 8 guest cast with a trio of actors: Elementary baddie Vinnie Jones, Wonder Years stunner Olivia d’Abo and New Girl ex Kali Hawk .

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TVLine has learned that Hawk will appear in an episode of the USA Network comedy as a crafty P.I. whose case leads her straight to Shawn and Gus. The actress’ alluring character will have a lasting effect on the latter.

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D’Abo, meanwhile, is set to drop by as a “master infiltrator” and right-hand lady to a brutal British criminal, played by fellow guest Jones (whose TV credits also include The Cape and Chuck).

Joining the aforementioned trio in Psych‘s Season 8 are the previously cast Cary Elwes, who’ll reprise his role as elusive fan fave Pierre Despereaux, and Kristy Swanson, returning as Marlowe.